Home / 291,240,620.20-436,294,059.90-161,616,255.40

Finding the Fourth Proportional to 291,240,620.20, 436,294,059.90 and 161,616,255.40

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Solution

The fourth proportional to 291,240,620.20, 436,294,059.90 and 161,616,255.40 is: 242,109,813.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,240,620.20 : 436,294,059.90 = 161,616,255.40 : x
  2. Step 2: Convert to fraction form
    291,240,620.20/436,294,059.90 = 161,616,255.40/x
  3. Step 3: Cross multiply
    291,240,620.20x = 436,294,059.90 × 161,616,255.40
  4. Step 4: Simplify right side
    291,240,620.20x = 70,512,212,214,301,296
  5. Step 5: Solve for x
    x = 70,512,212,214,301,296/291,240,620.20
  6. Step 6: Final answer
    x = 242,109,813.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.